Gleicheniales
| Gleicheniales Temporal range: | |
|---|---|
| Dipteris conjugata of the Dipteridaceae | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Subclass: | Polypodiidae |
| Order: | Gleicheniales Schimp. |
| Families | |
| Synonyms | |
(but see text) | |
Gleicheniales is an order of ferns in the subclass Polypodiidae (the leptosporangiate ferns). The Gleicheniales has spore records potentially as early as the Early Carboniferous, but the oldest unambiguous macrofossil records date to the Early Permian.